The Olympus DM-620 PCM audio recording device features a three-microphone TRESMIC system designed to capture low frequency sound for premium recordings. The DM-620 also offers cutting-edge technology options like voice guidance for users with assistive needs as well as auto-leveling, scene select, noise cancelation, zoom microphone and low-cut filter for capturing ideal recordings regardless of the environment. All of these features and more are packed into a compact, lightweight, sleek metal body with uncompressed 16 bit/48 kHz Linear PCM recording format enabling you to capture it all.